demo · HACKER NEWS RECOMMENDATION
Crazy pool vortex
Physics Girl · 0 HN recommenders · 0 recommendation months
Recommended by 0 Hacker News commenters across 0 months (2014–2024).
SignalTube analysis
Among 65 other demo videos tagged Everyday physics & science demos, the mean is 1.3 distinct HN recommenders. This video has 0 distinct HN recommenders, below that mean. Recommendations span 0 distinct months; the peer average is 1.3 months. This is a data-derived comparison, not a human review or quality rating.
0% of its 3 labeled comments are marked as recommendations or strong recommendations. HN mention years are 2014–2024; those years describe discussion history, not upload date. Its verified runtime is 4 minutes 3 seconds. YouTube lists its publication date as 2014-11-23.
- Channel / speaker
- Physics Girl
- Verified runtime
- 4m 3s
- YouTube upload date
- 2014-11-23
- Hacker News mention years
- 2014–2024
SAME TOPIC AND FORMAT
Compare with related videos
The comparison cohort uses other demo videos in Everyday physics & science demos. “Shared recommenders” counts HN users who recommended both videos in the source graph.
| Video | HN recommenders | Recommendation months | Positive label share | Shared recommenders | Runtime | Upload date |
|---|---|---|---|---|---|---|
| Crazy pool vortexCurrent video | 0 | 0 | 0% | — | 4m 3s | 2014-11-23 |
| Building a realistic artificial sun (for dark winter days)demo · DIY Perks | 9 | 8 | 45% | No recorded overlap | 19m 45s | 2020-10-31 |
| Why You Should Put YOUR MASK On First (My Brain Without Oxygen) - Smarter Every Day 157demo · SmarterEveryDay | 5 | 5 | 38% | No recorded overlap | 10m 18s | 2016-07-22 |
| Best fan placement to move air through the housedemo · Matthias random stuff | 4 | 4 | 80% | No recorded overlap | 6m 28s | 2021-06-30 |
THREE SOURCE-BASED CONTEXT POINTS
Why Hacker News recommends it
Each note combines the dataset’s stance label and short rationale; comment bodies are not reproduced. Open the HN source for the original discussion.
The archive classifies this as a contextual reference in “Google's quantum computer suggests that wormholes are real (2022)”. Its short rationale: Used as analogy for vortex linkage versus wormholes.
The archive classifies this as a contextual reference in “Pyramid Magnets – Focusing Flux to a Point”. Its short rationale: Listed as possibly related to the topic.
The archive classifies this as a contextual reference in “Crazy Pool Vortex [video]”. Its short rationale: Suggested as the better source link for the story.